Starter for internal-combustion engines



Jan. 3l, 1928. 1,657,885

J. w. EDBLAD v STARTER FOR INTERNAL GOMBUSTION ENGINES Filed April l5,1925 FnGE VNTOE LJITNESSI @MGi/w BY ATTO ENY Patented Jan. 31, 1928.

`uNiTaD sTATss PATENT orifice.

STARTER FOR INTERNAL-COMBUSTION ENGNES.

Application filed April 15, 1925. l Serial No. 23,291.

This invention relates to starting devices for internal combustionengines and its ob- ,ject to to provide novel starting means, `manuallyoperated, wherein the possibility of injury to the party operatinor thesaid means is positive] eliminated. The starting device Iis applicab eto vehicles that are propelled by explosive engines but it isparticularly adapted for )use upon tractors, trucks and the like thatare not ordinarily provided with the conventional type of starter; itcan also be installed cheaply upon automobiles of the inexpensive typethat are often purchased without starters for the sake of economy and toreduce the first cost of the vehicles.

With the foregoing and other objects in `vview the invention consists inthe combinationand arrangement of parts to be Vhereinafter fullydescribed, pointed out in the appended Claims andV illustrated in theaccompanying drawing which forms a part of this application and inWhich- Fig. 1 is a plan view illustrating the application yof thestarting device to an automobile.

Fig. 2 is a view of Fig. 1 in end elevation.

Fig. 3 is a view of Fig. 1 taken from the opposite end to that fromwhich Fig. 2 is taken.

Like reference characters denote correspending parts throughout theseveral views.

The reference numeral 1 denotes the automobile chassis an-d 2 the motorcrank shaft to which a collar 3 is made fast, aspring 4 encircling saidshaft has one end secured to the vcollar 3 and the opposite end engaginga clutch member 5 keyed to shaft 2 to keep it in engagement with theco-operating clutch member 6 integral with the pulley 7 and loose uponsaid crank shaft.

One face of the pulley 7 is provided with pawls 8 kept, through themedium of the springs 9, in mesh with the teeth of the wheel 10 which isloose upon shaft 2 and is positively secured against rotation by thescrews 11 which secure it to the chassis 1. As the pulley 7 rotates inone direction the pawls 8 ride over the teeth of the wheel 10 but themovement of the pulley will be instantly arrested, as well as themovement of the crank shaft, should the pulley start to reverse. Acasing 12 is provided for the wheel 10 and pawls 8 to inutile the. noisecaused by the travel of the pawls over said Wheel.

A belt 13 connects the said pulley 7 to a pulley 14 loose upon thestarter shaft 15, said pulley beingl integral with a clutch member 14loose upon'shaft 15 and kept yieldingly in engagement with the clutchmember 14", lfast upon shaft 15, by the spring 14C, `said clutch member1/1b being .connected by a coil spring 16,tliat encircles said startershaft, with'the chassis of the vehicle. Another pulley 17 loose upon thestarter shaft is connected by the clutch member 18, nor-` mally,`toanother clutch member 19 fast upon the shaft 15, said clutch membersbeing yieldingly retained in engaged relation by the expansion coilspring 20 that abuts the clutch member 19 and the chassis. A handle 21is provided for the clutchmember 19 so f i that it may be released fromthe clutch member 18 when necessary. A chain 22 connects the pulley 17and a small pulley 23 adapted to be rotated by the hand crank 24.

In operation, when it is desired to start the motor, the rhand crank 211is rotated.

\ This, through the medium of the clutch 18,`

19 rotates the starter shaft 15 and tightens the spring 16. The spring16 will rotate ,the clutch member 14b and the starter shaft but thisclutch member will ride out of engagement with the clutch member 14a andnot rotate the saine. When the spring 16 is wound up, or tightened, theoperator disengages the clutch members 18, 19 by means of the handle 21and releases the crank 24. The spring 416 will then unwind and turn thestarter shaft in a direction to operatively engage theV clutch ymembers14h, 14;a thus -V rotating tlie pulleys 14 and 7 with clutch members 6and 5 thus turning over the crank shaft 2. This operation will cause thelmotor to start which will thereafter drive ',f

the crank shaft which will rotate the clutch member 5 but disengage thesame from the clutch member 6 thus permitting the pulley 7 to idle uponthe shaft. Should the engine backfire it will do so before it hasacquired much speed or power and the pawls 8 in yengagement with theWheel 10 fast upon the engines, a starter shaft, a pulley loose uponsaiglshaft, a clutch member integral with said pulley and loose uponsaid shaft, a cooperating clutch member keyed to said im Y startershaft., aA spring encircling said shaft and having one end secured tosaid cooperating clutch member and its opposite end fast to a stationarysupport, ay second pulley loose upon said starter shaft, manuallyoperable means for driving said pulley, clutch nuwhanism for releasahlyconnecting said second pulley and starter shaft, a pulley loose upon theengine crank shaft, clutch mechanism lor securing said pulley to saidcrank shaft during movement of said pulley in one direction, and meansconnecting lsaid pulley, crank shaft and an external support wherebymovement of said pulley and crank shaft in reverse direction isinstantly arrested.

2. 'In a starter for internal combustion engines. a starter, sha'lt,loose pulleys upon opposite ends of said shaft, clutches for releasahlyconnecting said pulleys to said shaft, a coil spring encircling saidstarter shaft andfconnected to one of said clutches, hand lever controlfor the-opposite clutch, directmanually operable driving means for oneot' said pulleys, a pulley loose upon the engine crank shaft andbelt-connected to one of said first named pulleys, a clutch forconneeting one pulley direct to said crank shaft when said pulleyrotates in a predetermined direction, and means connecting said lastnamed pulley, crank shaft and an external support .wherebyfmovement ofsaid pulley and crankshaft in a reverse direction is arrested.

crank shaft. and belt-connected to one of` said lirst named pulleys, a:clutch for connecting one pulley direct to said crank shaft' when saidpulley rotates in a predetermined direction, a stationary ytoothed WheellooseY uponv said crank shaft, andspring pawlsA connecting the lastnamed pulleyy and said toothed Wheel whereby reverse movement ofsaidpulley 1s lnstantly arrested.

4. Inv a starter for internal combustion., engines, a starter shalt, acrank shaft, means f operatively connecting the shafts including v anirreversahle clutch voni the starter shaft, spring means for rotatingthe startershaft in one direction, manual means for placing the springunder tension, and releasable means for disengagingthe manual means,

'from the spring means, as andfor the pure pose specified.

In testimony thatl I claim theforegoing as my own I have hereto afxed mysignature.

JOHN VVALFRID EDBLAD.A

